Just as an example, assuming 5 years to build and 600M (post-tax) in cash flow for 21 years

• NPV (8%) = 1.9B
• NPV (5%) = 3.7B
• NPV (3%) = 5.5B

Therefore, somebody paying 475M (25% of 1.9B) would make a very good return once the project is fully derisked and if the true inflation remains around 3% 

On top of that, there's a lot of upside left.  Metal prices used are not excessive, mill is assumed to run only at 92%, construction timeline could be improved and not to mention everything coming from exploration.

IMO.

MoneyK

mill availability at 92%